Finding the Fourth Proportional to 307,505,431.68, 424,357,524.48 and 168,276,186.24
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Solution
The fourth proportional to 307,505,431.68, 424,357,524.48 and 168,276,186.24 is: 232,221,152.75
Step by Step Solution
- Step 1: Write the proportion equation
307,505,431.68 : 424,357,524.48 = 168,276,186.24 : x - Step 2: Convert to fraction form
307,505,431.68/424,357,524.48 = 168,276,186.24/x - Step 3: Cross multiply
307,505,431.68x = 424,357,524.48 × 168,276,186.24 - Step 4: Simplify right side
307,505,431.68x = 71,409,265,821,741,848 - Step 5: Solve for x
x = 71,409,265,821,741,848/307,505,431.68 - Step 6: Final answer
x = 232,221,152.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.